Liqtjid-ettel-heatufg device



C. H. FOSTER.

LlQUlD FUELA HEATING DEVICE. APPLICATION mw MM5. 191e.

am M fw/QW E7 ZP/3517,

EST AVILL C@ APPLICATION FILED JAN. 5,1918.

Patented Nov. 22, 192.1.

2 SHEETS-SHEET 2.

y liquid fuel is supplied to sai UNITED .STATES PATEN'` OFFC;

CLAUD H. FOSTER, OF WICKLIFFE-ON-THE-LAKE, OHIO.

To .aZZ- whom t may concer/n:

Beit known that I, CLAUD H. FOSTER, a citizen of the United States, residin vat Wickliffefon-the-Lake, inthe county of uyahoga and State of Ohio, have invented a certainnew andguseful Improvement in LiquidFuel-Heating'Devices, of which the following yis affull, clear, and exact description, Avreference `being had to the accompanying drawings. Y

Y. This invention relates to devices ,for `preparing. liquid jiuel :for Vuse `Wit-h.internal combustion, engines and,ywhilejcapable of employment with liquid fuel such as, kero? sene, itis especially useulginstarting engines with;` the `low-grade gasolene usually employed. ,The invention is preferably embodiedin anv attachment which-may be conveniently and economically applied toexisting carbureters, with practically no vchange or modification of thelatter. -lntheembodiments of theinvention shown herein, itis :contemplatedthat the devices-will be used in connection with the starting operationv and lpreliminarily to the closing ofl the ignition and starting circuits..f However, it will bei-evident that, by suitable changes in the circuit, lthe devices may be employed not only preliminarily to closing the ignition circuit, but during the period when the motoi-iis being turned overfor the purpose of starting, after which a circuit including the said device may be automatically broken.

-In the drawings forming part hereof, Figure 1 represents a view,l partly in sectionv and partly-inelevation, of a carbureter having my .invention embodied therewith; Fig. 2 is a sectional view through the float feed chamber of a carbureter of the type illustrated in Fig. 1 showing another form of my invention; Fig. 3 isa view similar to Fig. 2 of a modified form of my invention showing the same in connection with a different type of carbureter from that illustratedin Fig. 1; and Fig. 4 is a diagrammatic view of an electric circuit including my 'heating device.`

Describing by reference characters the parts illustrated in the drawings, and with particular reference to Fig 1, 1 represents the float-feed chamber of an ordinary type of carbureter, said chamber having the float 2 therein provided with the needle valve 3 controlling the port 4 throu h which the cgi chamber by Specification of Letters Patent.

Patented Nov. 22, 1921.

.-Ap'plieation led January 5, 1918. Serial No. 210,507.

means of the supply ypipe 5. The oat-eed chamber communicates with a jet nozzle 6 through a passageway 7, the jet orifice being controlled by a valve 8. 9 denotes the usual air inlet connection, provided with a butter 'iy valve 10, and 11 denotes the auxiliary air valve at the upper end of the et nozzle. Above the jet nozzle and the valve 11 is the mixing chamber 12, said chamber forming part of the duct through which the combustible mixture is conducted to the engine cylinders.k The outlet from the mixing chamber is controlled by the ordinary throttle valve, the operating lever for which is indicated at 13. Theparts thus far described are of ordinary standard construction.

In applying my invention to a carbureter of the type above described, l may tap into the bottom of the ioat feed chamber a connection 14 to which a pipe 15 may be secured by means of the coupling 16. rllhe opposite end of the pipe is connected to the bottom of a receptacle 17. This receptacle is conveniently made of two parts ot metal, one of said parts carrying a threaded iange 18 to which the other section 1711 may be connected by means or a flange 19 and a coupling 2O having a iange adapted to engage the flange 19 and provided with an internal thread for securing the two parts of the casing together. A washer 21 may be inserted between the flanges 18 and 19. T he casing member 17a is provided with a socket to which an electric heater is secured, the heater being shown as a bulb 28 having the ordinary resistance therein, said bulb being of any suitable material, as glass or sheet metal, and the parts being so proportioned that an annular space is provided around the bulb, between thel same and the casing. A pipe 22 connected to the top of the casing and to a connection 23 conveniently tapped into the bottom of the carbureter provides a passageway extending upwardly from the casing to the passageway 7.

lVith the parts constructed and arranged as described, liquid fuel from the float feed chamber will iiow through the pipe 15, casing 17, pipe 22 and coupling 23 to the jet nozzle. In starting the motor, current will be supplied to the heater 28 through the conductors 24 and, owing to the comparatively small body of liquid surrounding the heater, the liquid will be heated quickly and necting the casing sections, and an electric heater carried by one of said sections and adapted to project into the other section and to provide with the casing a heating chainber extending around said heater.

4. The combination, With a carbureter including a float feed chamber and a jet nozzle, of a conduit extending between the said chamber and nozzle, a receptacle in said conduit, and an electric lamp extending into said receptacle and forming with the interior thereof a circulating space for liquid fuel.

5. The combination with a fluid fuel receptacle and the throttle duct of a mixing device for internal combustion engines, of a conduit for conducting fluid fuel from said receptacle to the throttle duct, a sectional receptacle in the conduit, an electric heating element disposed Within said receptacle, and connections for supplying electric current to said element.

6. rfhe combination, with a fluid fuel receptacle and the throttle duct of a mixing device for internal combustion engines, of a conduit for conducting fluid fuel from said receptacle to the throttle duct, a sectional receptacle in the conduit, an electric lamp carried by one of the receptacle sections and forming with the inner Wall of the second receptacle a space for the circulation of uid fuel, and connections for supplying electric current to said lamp.

In testimony whereof, I hereunto affix my signature.

CLAUD H. FOSTER. 

